hole of the cylinder mechanism, which is located in the button 2 and without pushing the but- ton 2 turn

the
key into position “opened”, then press the button 2.

Door

1 – key; 2 – button; 3 – detent, 4 – lock; 5 – lever.

Figure 1.16 – Cab door lock
1.3.13.2 Left-side window opening
To open the left-side window 1 (Figure 1.17) it is required to take a handle 2 up and
push to secure the side window 1 in an opened position.
To close the left-side window 1 take the handle 2 up and pull to secure the side window
1 in a closed position.

ɚ) window closed b) window opened

1 – left-side window; 2 –.handle.
Figure 1.17 – Side window opening
1.3.13.3 Rear window opening
To open the rear window 2 (figure 1.18) turn a handle 1 upwards (counterclock-
wise) and push rear window away. Under the influence of airlifts 3 it will take tilt position.
To close the rear window pull the handgrip 4 on until the window is fixed in window
aperture, turn handle 1 clockwise until handle detent planes into coincidence with bracket
forming.

ɚ) rear window closed b) rear window opened

1 – handle; 2 – rear window; 3 – airlift; 4 – hand grip.

Figure 1.18 – Rear window opening

1.3.13.4 Cab roof opening
To open the roof 1 (figure 1.19) pull the hand grip 3 down, push detent 2 up and pressing it push hand grip 3
with the roof 1 up, until the roof is fixed in open position.
To close the roof 1 pull the hand grip 3 down until the roof 1 is fixed in a close posi- tion (the latch
5 shall be fixed in the bracket 4).

ɚ) roof closed b) roof opened

1 – roof; 2 – detent; 3 – hand grip; 4 – bracket; 5 – latch.

Figure 1.19 – Cab roof opening

1.3.13.5 Cab emergency exits and actions in extreme conditions

The cab has the following emergency exits:
- doors – left and right;
- rear window;
- roof.

In case of an accident immediately stop the engine, engage tractor brakes, deactivate ac- cumulator batteries
and get off the tractor through one of emergency exits, having opened left or right cab door, depending on
the tractor position, or rear screen, or the roof. If it is not possible to open the emergency exits, break the
screen of one of the emergency exits with a heavy subject at hand and leave the tractor cab.
 2 TRACTOR COMPONENTS DESCRIPTION AND OPERATION
Note - In the present section 2 “Tractor components description and operation” are given technical
descriptions of original BELARUS-1025.4 tractors components and additional information according to the
requirements of section 4 of Annex II of Directive 2010/52/EC, information about trailer brakes drives and their
compatibility with trailed vehicles. The de- scription and operation of the remaining components of the
BELARUS-1025.4 tractors are given in operating manual 1025-0000010 OM, supplied with your tractor.

2.1 Engine D-245S3Ⱥ

Information about the design, troubleshooting, rules of operation and maintenance of the D-245S3Ⱥ engines
are described in the engine operating manual 245S3Ⱥ – 0000100 OM ap- plied to your tractor.

2.2 Electronic engine control system for D-245S3Ⱥ

2.2.1 General Information
The electronic engine control system (Figure 2.2) includes the electronic unit 7, infor- mation display 3,
the control panel 4, the engine mode manual control lever 5, the engine mode electronic foot pedal 8, the
switching and protection unit 6, which are installed in the tractor cab and connected to each other by cables 1.
The system is powered from the battery via the switching and protection unit as per the electric circuit diagram
presented in Figure
2.4.
After the starter and instrument switch is turned from the “OFF” to “Instrument power” po-
sition, the system is powered up. When the supply voltage is supplied, the system performs self-
diagnostics. If no errors in system operation are found, the failure signal indicator 2 (figure 2.1)
on the engine control system panel should go on and off, and the information display 4 switches
to the operating mode. If an error is found, the information display emits a sound signal, and the
screen shows a short description of detected errors (error code designation and its description),
as well as the failure signal indicator 2 on the engine control system panel flashes or blinks. Er-
ror code interpretation as well as advised actions for troubleshooting of the detected errors are
described in the engine operating manual 245S3A-0000100 OM enclosed to your tractor. Elimi-
nate detected errors before starting the engine.
The engine is started by turning and holding the starter and instrument switch in the
“Starter ON” position. After the engine starts, the display shows actually measured parameters
of engine operation.
Figure 2.4 shows the electric circuit diagram of the external part of the control system of
the D-245S3Ⱥ engines of the BELARUS-1025.4 tractor.

diagnostic
equipment connector

1 – diagnostics activation button switch; 2 - failure diagnostics indicator; 3 – ciga- rette lighter; 4 –
information display; 5-panel; 6 - appliance receptacle 12 V/ 25 A.

Figure 2.1 – Engine control system panel

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1-connection harnesses, 2-diagnostic equipment connector, 3-information display; 4-control panel; 5- engine mode manual control lever, 6- switching and pro- tection unit; 7- electronic control
unit; 8- engine mode control electronic foot pedal.

1025.4-0000010B-01 OM
Figure 2.2 – Engine control system for D-245S3Ⱥ
 2.2.2 Adjust brightness and contrast of display indicator
Press the button 5 (Figure 2.3) to enter the display brightness and contrast adjust- ment mode. In the
lower part of the screen, button images are shown. Press the button 1 to reduce brightness, press the button 2
to increase brightness, press the button 3 to reduce contrast, press the button 4 to increase contrast, press the
buttons 1, 2, 3, 4 simultaneously to set the medium contrast and maximum brightness. Press the button 5 again
to exit the brightness and contrast adjustment mode.

1 – button to call a presentation of the main indicator and browse through indicated pa- rameters; 2 –
button to call the four-section indicator and browse through indicated parameters,
3 – button to call the graphic presentation indicator and browse through indicated parameters, 4 – but- ton to call error
(failure) list, 5 – button to enter/exit the mode of brightness and contrast adjustment and PIN code, 6 –
changeable presentation of button purpose, 7 – screen.
Figure 2.3 - Information display

2.2.3 Call up changeable presentations and parameters to display

Press the button 1 on the display (Figure 2.3) to call the main image to the screen. At that, the upper
left corner presents an engine speed scale, the upper right angle pre- sents a travel speed scale (when no
speed parameter available, oil pressure in the engine lubrication system is shown), the lower right angle
presents the coolant temperature, the lower left angle presents the current fuel consumption per hour.
Press the button 2 to call the four-section parameter presentation on the display
screen. After a first stroke of the button 2, four parameters in numeric form are shown on
the screen:
- in the upper left corner – voltage directly on the connection terminals of the informa-
tion display;
- in the upper right corner – coolant temperature;
- in the lower left corner – electric system voltage;
- in the lower right corner – oil pressure in the engine lubrication system.
After a second and third stroke on the button 2, the screen shows four parameters
in analog form.
Using the adjustment mode, the user can call, as necessary, presentation of vari-
ous engine parameters as listed in Table 4 to the screen. Press the button 5 to enter the
adjustment mode. Sequential pressing of the button 1 changes indicated parameters in
the upper left corner, the button 2 – in the upper right corner, the button 3 – in the lower
left corner, the button 4 – in the lower right corner. Press the button 5 to exit the adjust-
ment mode.
Press the button 3 to call the graphic parameter presentation in time (works as an
analog recorder of parameters).
Required parameters listed in Table 4 are selected by sequentially pressing the
button 3.

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 The time grid can be set up in the configuration menu from 2, 10, or 30 minutes to
1, 2, 4, or 8 hours. To open the configuration menu, enter the code (PIN number). To
open the PIN number window, press the button 5 for over 3 seconds. This menu also al-
lows selecting metric or imperial units of measurement, as well as English, Spanish,
Swedish, French, German, Italian, Dutch, Portuguese and Russian among the available
languages.
ATTENTION: ONLY DEALERS ARE ALLOWED TO CHANGE PARAMETERS OF
THE CONFIGURATION MENU.
Press the button 4 to call error (failure) list. Browse the list with the buttons 1 and 2.
When any error (failure) emerges during work, the display emits a sound signal, and a
blinking windows pops up with description of last errors (failures).
ATTENTION: THE ENGINE IS STOPPED BY TURING THE STARTER AND IN-
STRUMENT SWITCH TO “OFF” POSITION.
Table 4 - List of parameters of graphic and four-section indication of engine operation.
Four-section presen- Graphic presen-
Parameters tation Symbol
tation
Voltage directly on the connection
1 terminals of the information display, 9 9
V
Voltage at battery terminals
2 measured by electronic control 9 9
unit of engine, V
3 Fuel consumption 9 9

4 Incoming air pressure 9

5 Oil pressure in engine 9 9

6 Coolant temperature in engine 9 9

7 Engine oil temperature 9 9

8 Fuel temperature 9

9 Air temperature at inlet pipe 9 9

10 Accelerator position, % 9

11 Torque use, rpm 9

12 Engine speed (rpm) 9 9

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1025.4-0000010B-01 OM